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Finding the Fourth Proportional to 381,696.60, 572,544.90 and 346,704.60

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Solution

The fourth proportional to 381,696.60, 572,544.90 and 346,704.60 is: 520,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,696.60 : 572,544.90 = 346,704.60 : x
  2. Step 2: Convert to fraction form
    381,696.60/572,544.90 = 346,704.60/x
  3. Step 3: Cross multiply
    381,696.60x = 572,544.90 × 346,704.60
  4. Step 4: Simplify right side
    381,696.60x = 198,503,950,536.54
  5. Step 5: Solve for x
    x = 198,503,950,536.54/381,696.60
  6. Step 6: Final answer
    x = 520,056.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.